Active pharmaceutical ingredient (API) impurities for research

All products contained in this category are intended for laboratory use only, and are not meant for human consumption.

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Product data	Purity	Price range	Estimated delivery
Bosentan Related Compound D (4,6-dichloro-5-(2-methoxyphenoxy)-2,2'-bipyrimidine) REF: 45-1076159CAS: 150728-13-5	- - -	1,493.00 €	Tue 15 Oct 24
Chlorzoxazone Related Compound A (2-Amino-4-chlorophenol) REF: 45-1130527CAS: 95-85-2	- - -	1,477.00 €	Tue 15 Oct 24
Fosinopril Related Compound A ((4S)-4-cyclohexyl-[(4-phenylbutyl)phosphinyl]acetyl-L-proline) REF: 45-1283415CAS: 95399-71-6	- - -	1,371.00 €	Tue 15 Oct 24
Zolpidem Related Compound A (N,N-Dimethyl-2-[7-methyl-2-p-tolylimidazo[1,2-a]pyridin-3-yl]acetamide) REF: 45-1724918CAS: 1346600-85-8	- - -	1,477.00 €	Tue 15 Oct 24
Meloxicam Related Compound C (Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide) REF: 45-1379434CAS: 118854-48-1	- - -	1,552.00 €	Tue 15 Oct 24
Perphenazine Related Compound B (2-{4-[3-(10H-phenothiazin-10-yl)propyl]piperazin-1-yl}ethanol) REF: 45-1511021CAS: 3533-97-9	- - -	1,371.00 €	Tue 15 Oct 24
Fluoxetine Related Compound B (N-Methyl-3-phenylpropan-1-amine) REF: 45-1279826CAS: 23580-89-4	- - -	1,627.00 €	Tue 15 Oct 24
Tranexamic Acid Related Compound C ((RS)-4-(Aminomethyl)cyclohex-1-enecarboxylic acid hydrochloride) REF: 45-1672756CAS: 330838-52-3	- - -	1,539.00 €	Tue 15 Oct 24
Doxazosin Related Compound D (1,4-benzodioxane-2-carboxylic acid) REF: 45-1225463CAS: 3663-80-7	- - -	1,647.00 €	Tue 15 Oct 24
P-Chloroaniline REF: 45-1111908CAS: 106-47-8	- - -	444.00 €	Tue 15 Oct 24
Isoflurane Related Compound B (2,2,2-Trifluoroethyl difluoromethyl ether) REF: 45-1349025CAS: 1885-48-9	- - -	1,552.00 €	Tue 15 Oct 24
Torsemide Related Compound C (N-[(ethylamino)carbonyl]-4-[(3-methylphenyl)amino]-3-pyridinesulfonamide) REF: 45-1672337CAS: 58155-35-4	- - -	1,371.00 €	Tue 15 Oct 24
Bendamustine Related Compound I (Ethyl 4-{5-[bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoate) REF: 45-1065312CAS: 87475-54-5	- - -	1,292.00 €	Tue 15 Oct 24
Vardenafil Related Compound D (2-{2-Ethoxy-5-[(4-ethyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl}-5-methyl-7-propyl-imidazo[5,1-f][1,2,4]triazin-4(3H)-one) REF: 45-1711064CAS: 448184-48-3	- - -	1,575.00 €	Tue 15 Oct 24
Amlodipine Related Compound D (3-Ethyl 5-methyl 4-(2-chlorophenyl)-2-{[2-(1,3-dioxoisoindolin-2-yl)ethoxy]methyl}-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate) REF: 45-1029545CAS: 88150-62-3	- - -	1,371.00 €	Tue 15 Oct 24
Rosiglitazone Related Compound A ((5Z)-5-{[4-({2-[methyl(2-pyridinyl)amino]ethyl}oxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione) REF: 45-1605828CAS: 160596-25-8	- - -	581.00 €	Tue 15 Oct 24
Iodixanol Related Compound D (5-[Acetyl(2-hydroxy-3-methoxypropyl)amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide) REF: 45-1343550CAS: 89797-00-2	- - -	1,477.00 €	Tue 15 Oct 24
Sodium Sulfate Anhydrous REF: 45-1614807CAS: 7757-82-6	- - -	455.00 €	Tue 15 Oct 24
Tizanidine Related Compound A (4-amino-5-chloro-2,1,3-benzothiadiazole) REF: 45-1667916CAS: 30536-19-7	- - -	1,371.00 €	Tue 15 Oct 24
3-Chlorobenzoic Acid REF: 45-1112299CAS: 535-80-8	- - -	1,371.00 €	Tue 15 Oct 24

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Bosentan Related Compound D (4,6-dichloro-5-(2-methoxyphenoxy)-2,2'-bipyrimidine)

CAS:150728-13-5

Compounds containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, …

Formula:

C₁₅H₁₀Cl₂N₄O₂

Color and Shape:

Yellow Powder

Molecular weight:

348.01808

Ref: 45-1076159

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Chlorzoxazone Related Compound A (2-Amino-4-chlorophenol)

CAS:95-85-2

Amino-naphthols and other amino-phenols, their ethers a

Formula:

C₆H₆ClNO

Color and Shape:

Brown Crystalline Powder

Molecular weight:

143.01379

Ref: 45-1130527

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Fosinopril Related Compound A ((4S)-4-cyclohexyl-[(4-phenylbutyl)phosphinyl]acetyl-L-proline)

CAS:95399-71-6

Cardiovascular drugs, not elsewhere specified or includ

Formula:

C₂₃H₃₄NO₅P

Color and Shape:

Powder

Molecular weight:

435.21746

Ref: 45-1283415

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Zolpidem Related Compound A (N,N-Dimethyl-2-[7-methyl-2-p-tolylimidazo[1,2-a]pyridin-3-yl]acetamide)

CAS:1346600-85-8

Drugs with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

Formula:

C₁₉H₂₁N₃O

Color and Shape:

Off-White Powder

Molecular weight:

307.16846

Ref: 45-1724918

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Meloxicam Related Compound C (Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide)

CAS:118854-48-1

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₃H₁₅NO₅S

Color and Shape:

White Light Pink Solid Powder

Molecular weight:

297.06709

Ref: 45-1379434

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Perphenazine Related Compound B (2-{4-[3-(10H-phenothiazin-10-yl)propyl]piperazin-1-yl}ethanol)

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Perphenazine Related Compound B (2-{4-[3-(10H-phenothiazin-10-yl)propyl]piperazin-1-yl}ethanol)

CAS:3533-97-9

Compounds (excluding drugs) containing a phenothiazine ring-system (whether or not hydrogenated), not further fused

Formula:

C₂₁H₂₇N₃OS

Color and Shape:

Off-White Powder

Molecular weight:

369.18748

Ref: 45-1511021

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Fluoxetine Related Compound B (N-Methyl-3-phenylpropan-1-amine)

CAS:23580-89-4

Aromatic monoamines and their derivatives, salts thereof, nesoi

Formula:

C₁₀H₁₅N

Color and Shape:

Clear Colorless Liquid

Molecular weight:

149.12045

Ref: 45-1279826

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Tranexamic Acid Related Compound C ((RS)-4-(Aminomethyl)cyclohex-1-enecarboxylic acid hydrochloride)

CAS:330838-52-3

Amino-acids and their esters other than those containing more than one kind of oxygen function, …

Formula:

C₈H₁₃NO₂·HCl

Color and Shape:

White Off-White Powder

Molecular weight:

191.07131

Ref: 45-1672756

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Doxazosin Related Compound D (1,4-benzodioxane-2-carboxylic acid)

CAS:3663-80-7

Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi

Formula:

C₉H₈O₄

Color and Shape:

Off-White Crystalline Powder

Molecular weight:

180.04226

Ref: 45-1225463

Estimated delivery in United States, on Tuesday 15 Oct 2024

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P-Chloroaniline

CAS:106-47-8

Aniline derivatives and their salts

Formula:

C₆H₆ClN

Color and Shape:

White Light Yellow Powder

Molecular weight:

127.01888

Ref: 45-1111908

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Isoflurane Related Compound B (2,2,2-Trifluoroethyl difluoromethyl ether)

CAS:1885-48-9

Ethers of monohydric alcohols, nesoi

Formula:

C₃H₃F₅O

Color and Shape:

Colorless Clear Liquid

Molecular weight:

150.01041

Ref: 45-1349025

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Torsemide Related Compound C (N-[(ethylamino)carbonyl]-4-[(3-methylphenyl)amino]-3-pyridinesulfonamide)

CAS:58155-35-4

Sulfonamides, excluding drugs

Formula:

C₁₅H₁₈N₄O₃S

Color and Shape:

White Off-White Powder

Molecular weight:

334.10996

Ref: 45-1672337

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Bendamustine Related Compound I (Ethyl 4-{5-[bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoate)

CAS:87475-54-5

Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

Formula:

C₁₈H₂₅Cl₂N₃O₂

Color and Shape:

White Solid

Molecular weight:

385.13238

Ref: 45-1065312

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Vardenafil Related Compound D (2-{2-Ethoxy-5-[(4-ethyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl}-5-methyl-7-propyl-imidazo[5,1-f][1,2,4]triazin-4(3H)-one)

CAS:448184-48-3

Sulfonamides, nesoi

Formula:

C₂₃H₃₂N₆O₅S

Color and Shape:

White Powder

Molecular weight:

504.21549

Ref: 45-1711064

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Amlodipine Related Compound D (3-Ethyl 5-methyl 4-(2-chlorophenyl)-2-{[2-(1,3-dioxoisoindolin-2-yl)ethoxy]methyl}-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate)

CAS:88150-62-3

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₂₈H₂₇ClN₂O₇

Color and Shape:

Off-White Powder

Molecular weight:

538.15068

Ref: 45-1029545

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Rosiglitazone Related Compound A ((5Z)-5-{[4-({2-[methyl(2-pyridinyl)amino]ethyl}oxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione)

CAS:160596-25-8

Compounds containing an unfused thiazole ring (whether

Formula:

C₁₈H₁₇N₃O₃S

Color and Shape:

Yellow Solid

Molecular weight:

355.09906

Ref: 45-1605828

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Iodixanol Related Compound D (5-[Acetyl(2-hydroxy-3-methoxypropyl)amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide)

CAS:89797-00-2

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₂₀H₂₈I₃N₃O₉

Color and Shape:

White Powder

Molecular weight:

834.89597

Ref: 45-1343550

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Sodium Sulfate Anhydrous

CAS:7757-82-6

Disodium sulfate, except salt cake, nesoi

Formula:

Na₂SO₄

Color and Shape:

White Crystalline Powder Crystalline Granules

Molecular weight:

141.93127

Ref: 45-1614807

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Tizanidine Related Compound A (4-amino-5-chloro-2,1,3-benzothiadiazole)

CAS:30536-19-7

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₆H₄ClN₃S

Color and Shape:

Orange Powder

Molecular weight:

184.98145

Ref: 45-1667916

Estimated delivery in United States, on Tuesday 15 Oct 2024

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3-Chlorobenzoic Acid

CAS:535-80-8

Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacid and their derivatives not elsewhere specified or …

Formula:

C₇H₅ClO₂

Color and Shape:

White Powder

Molecular weight:

155.99781

Ref: 45-1112299

Estimated delivery in United States, on Tuesday 15 Oct 2024

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